15... c2a1  16. f1d3  16... f5d7  17. h1e1 Robson starts to falter after magnificent play. He played so well up to this point that it almost feels unfair that he loses this game. But let's not forget to praise Arjun as well - he does this on purpose, knowing he is walking a tight rope, but he is confident in his ability to outcalculate his opponents. 17... e8f7 